Sirozan explained it very well, let us know if there is still any doubts. And yeah, anyone ate any level that tries to sell a high level item (mystical or legendary) will only be able to sell one, then select the inventory tab again, scroll all the way to the item you just sold and sell the next one. It's pretty annoying and you get sick of it after like 3 times, really. On the subject, we still need to skip cutscenes every time we play a map. Harbinger is utterly frustrating because it takes more time to load the map, see/skip all cutscenes (intro, when you defeat him, waiting for victory screen and chest to spawn) then to actually beat the map. And please, oh please, add a sell all button to the Scavenger. Separating the items in different tabs would be awesome too (one for greens, one for blue, one for pet stuff, etc.) Ps: I am too surprised you guys didn't know about the selling bug!